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Science > Math > Number Theory



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Active Elementary Number Theory
Interactive (Javascript) expression of a number as a sum of two squares.
http://www.faust.fr.bw.schule.de/mhb/taupaeng.htm
Application of Digital Root
A test for the terms of a sequence being expressed by a polynomial, by Roupam Ghosh.
http://www.geocities.com/bappan420/
Covers, Sumsets and Zero-sums
A unified approach to covering systems, restricted sumsets and zero-sum problems by Zhi-Wei Sun.
http://pweb.nju.edu.cn/zwsun/csz.htm
Fermat's Little Theorem
With notes on Carmichael numbers and the life of R.D. Carmichael.
http://www.pballew.net/FermLit.html
Frequently Asked Questions
Number Theory section of the sci.math FAQ list.
http://db.uwaterloo.ca/~alopez-o/math-faq/node21.html
Hakmem Continued Fractions
Some notes from the MIT collection. Includes Gosper's algorithms for CF arithmetic.
http://www.inwap.com/pdp10/hbaker/hakmem/cf.html
Infinite Series Theorem
Addresses the question whether a series of rational functions converges to a rational number.
http://www.infiniteseriestheorem.org/
Integer Relations
To determine linear integer dependence among numerical constants and to determine the minimal polynomial of an approximate algebraic number. Interactive or via email.
http://oldweb.cecm.sfu.ca/~aszanto/IntegerRelations/
Introduction to Bernoulli Numbers
A web article with a brief history and account of their relationship with the Riemann zeta function and Fermat's Last Theorem (HTML/PS).
http://numbers.computation.free.fr/Constants/Miscellaneous/bernoulli.html